 One of barracks in Fort Hancock Historic District. Sandy Hook, New Jersey, February 11, 2007
 Barracks around Parade Ground in Fort Hancock Historic District. Sandy Hook, New Jersey, February 11, 2007
 A balcony of a barrack at Magruder Road in Fort Hancock Historic District. Sandy Hook, New Jersey, February 11, 2007
 Nike Missiles at the entrance of Fort Hancock Historic District. Sandy Hook, New Jersey, March 11, 2007
 A house in north part of Fort Hancock Historic District, view from Kearney Road. Sandy Hook, New Jersey, March 11, 2007
 Keepers quarters and Sandy Hook Lighthouse, view from Hudson Drive. Sandy Hook, New Jersey, February 11, 2007
 Sandy Hook Lighthouse and keepers quarters, view from the west. Sandy Hook, New Jersey, February 11, 2007
 View of Sandy Hook Bay and Sandy Hook from Mount Mitchill Scenic Overlook. Atlantic Highlands, New Jersey, April 22, 2007
 Sandy Hook Lighthouse, view from Hudson Drive. Sandy Hook, New Jersey, March 11, 2007
 Sandy Hook Beach D near Visitor Center. New Jersey, February 11, 2007
 Sand dunes of North Beach. Sandy Hook, New Jersey, February 11, 2007
 View of Brooklyn NY from a trail north from parking area M. Sandy Hook, New Jersey, February 11, 2007
 A tree on northern tip of Sandy Hook. New Jersey, April 22, 2007
 North Beach. Sandy Hook, New Jersey, March 11, 2007
 Ruins near Fishing Beach. Sandy Hook, New Jersey, March 11, 2007
 A tree in the area of US Coast Guard in Sandy Hook. New Jersey, April 22, 2007
 View of Manhattan from North Beach. Sandy Hook, New Jersey, March 11, 2007
 A tree on dunes of north beach in Sandy Hook. New Jersey, April 22, 2007
 A pier in the area of US Coast Guard in Sandy Hook. New Jersey, April 22, 2007
 Prickly pears cactus near Fishing Beach. Sandy Hook, New Jersey, March 11, 2007
 Dead trees on dunes of North Beach Sandy Hook, New Jersey, March 11, 2007
 Prickly pears cactus (zoomed) near Fishing Beach. Sandy Hook, New Jersey, March 11, 2007
 Parade Ground and barracks, view from Guardian Park road. Sandy Hook, New Jersey, March 11, 2007
 A frozen Lake Carnegie, view from Delaware and Raritan Canal State Park. Kingston, New Jersey, February 10, 2007
 Frozen Buttermilk Falls on Mountain Road in Delaware Water Gap. New Jersey, March 3, 2007
 Beach Point Light on Sandy Neck and frozen Barnstable Harbor, view from north end of Bone Hill Road in Cape Cod. Massachusetts, February 5, 2005.
 Twin Lights State Historic Site. Atlantic Highlands, New Jersey, April 22, 2007
 A house at 25 Mercer Street. Princeton, New Jersey, February 26, 2007
 A church on Mercer Street. Princeton, New Jersey, February 26, 2007
 Downtown from observatory at the top of Hancock Tower. Chicago, Illinois, September 11, 2007
 View to the west from observatory of Hancock Tower. Chicago, Illinois, September 11, 2007
 Navy Pier from observatory of Hancock Tower. Chicago, Illinois, September 11, 2007
 An alley in front of Institute for Advanced Study. Princeton, New Jersey, February 28, 2007
 View to south-west from observatory of Hancock Tower. Chicago, Illinois, September 11, 2007
 Lake Carnegie, view from Washington Road bridge. Princeton, New Jersey, February 4, 2007
 Saint Paul s Catholic Church on Nassau Street. Princeton, New Jersey, February 24, 2007
 Delaware and Raritan Canal near Institute for Advanced Study. Princeton, New Jersey, February 27, 2007
 A towpath in Delaware and Raritan Canal State Park. Princeton, New Jersey, February 21, 2007
 Spillway in Delaware and Raritan Canal State Park. Kingston, New Jersey, February 10, 2007
 North Lake Shore Drive from observatory at the top of Hancock Tower. Chicago, Illinois, September 11, 2007
 Tracks on a trail of Delaware and Raritan Canal State Park. Kingston, New Jersey, February 26, 2007
 Lake Carnegie at sunset, view from Washington Road bridge. Princeton, New Jersey, February 4, 2007
 Snow on a towpath in Delaware and Raritan Canal State Park. Kingston, New Jersey, February 21, 2007
 Snowy trail in Delaware and Raritan Canal State Park. Kingston, New Jersey, February 21, 2007
 Interior of Saint Paul s Catholic Church on Nassau Street. Princeton, New Jersey, February 24, 2007
 Altar of Saint Paul s Catholic Church on Nassau Street. Princeton, New Jersey, February 24, 2007
 A towpath in Delaware and Raritan Canal State Park north from Kingston. New Jersey, February 24, 2007
 A trail in Delaware and Raritan Canal State Park north from Kingston. New Jersey, February 24, 2007
 A front statue of Saint Paul s Catholic Church on Nassau Street. Princeton, New Jersey, February 24, 2007
 Bird s tracks on a towpath of Delaware and Raritan Canal State Park. Kingston, New Jersey, February 26, 2007
 Delaware and Raritan Canal near Institute for Advanced Study golf course, view from a bridge. Princeton, New Jersey, February 27, 2007
 Sweet gum fruits in snow on a trail in Delaware and Raritan Canal State Park. Princeton, New Jersey, February 20, 2007
 Enchanted Rock behind Sandy Creek from Loop Trail. Fredericksburg, Texas, October 27, 2007
 A backyard of Alexander Hall in Princeton University. Princeton, New Jersey, February 26, 2007
 Sundial near the Chapel in Princeton University. Princeton, New Jersey, February 26, 2007
 Blair Hall of Princeton University. Princeton, New Jersey, February 26, 2007
 M. Scully (in the center) in Princeton University. Princeton, New Jersey, February 17, 2007
 Group of M. Scully in Princeton University. Princeton, New Jersey, February 15, 2007
 Blair Hall clock tower in Princeton University. Princeton, New Jersey, February 26, 2007
 Southern facade of Alexander Hall in Princeton University. Princeton, New Jersey, February 26, 2007
 Frozen McKittrick Creek. Guadalupe Mountains National Park, Texas, December 28, 2007
 Blair Hall clock tower in Princeton University, from south-west. Princeton, New Jersey, February 28, 2007
 View of Fort Alexander (Plague) from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Ruins of Fort Pavel I (Risbank), view from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Fort Pavel I (Risbank) with Lomonosov in background, view from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Multi-colored sun beams in University Chapel of Princeton University. Princeton, New Jersey, February 24, 2007
 Ruins of Hancock Bank and another building at North Beach Boulevard, near Main Street. Bay Saint Louis, Mississippi, February 4, 2006
 Horse apple (osage orange) in a frozen pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 10, 2010
 Totem-like columns of volcanic tuff across Limpia Creek, view from Road 17. Fort Davis, Texas, December 29, 2007
 Lost Falls near Blue Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
 Laurel Falls near Orange Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
 A chamber in University Chapel of Princeton University. Princeton, New Jersey, February 24, 2007
 Gulf of Finland near Solnechnoye with Fort Totleben at horizon, 15 miles north-west from Saint Petersburg. Russia, September 8, 2007
 University Chapel of Princeton University. Princeton, New Jersey, February 24, 2007
 A sandy wadi with bushes on the bottom of Ramon Crater south from Mount Ardon. The Middle East, February 9, 2002
 Columnar jointed palisade appearance of vertical lava flows along Limpia Canyon, view from Road 17. Fort Davis, Texas, December 29, 2007
 Doha Fort (Al Koot Fort) near Souq Waqif (old market). Doha, Qatar, January 24, 2010
 A shell of quahog frozen into Horseneck Beach at sunset. Westport, Massachusetts, February 1, 2004
 Frozen quahog shells on Horseneck Beach at sunset. Westport, Massachusetts, February 1, 2004
 Boats and frozen Slocum s River at the end of Gaffney Road. Dartmouth, Massachusetts, February 8, 2004
 A village and frozen Slocums River at the end of Gaffney Road. Dartmouth, Massachusetts, February 8, 2004
 A village and frozen Slocum River at the end of Gaffney Road. Dartmouth, Massachusetts, February 8, 2004
 Doha Fort (Al Koot Fort) near Souq Waqif. Doha, Qatar, March 1, 2011
 Indian Lodge in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 Cliff above Indian Lodge in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 A quahog shell frozen into a pool on Horseneck Beach at sunset. Westport, Massachusetts, February 1, 2004
 Boats and frozen Slocum s River at the end of Gaffney Road at sunset. Dartmouth, Massachusetts, February 19, 2004
 Boats and frozen Slocum s River at the end of Gaffney Road at sunset. Dartmouth, Massachusetts, February 19, 2004
 Yucca on a hill west from entrance in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 On a hill south from Indian Lodge in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 Purple spineless prickly pears cactus in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 Mountain laurel flowers on Blue Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
 Hedgehog cactus (Echinocereus viridiflorus) on northern hill in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 A village and boats on the bank of frozen Slocums River at the end of Gaffney Road at sunset. Dartmouth, Massachusetts, February 8, 2004
 A stream. Delaware Water Gap, New Jersey, March 3, 2007
 Buttermilk Falls. Delaware Water Gap, New Jersey, May 12, 2007
 Magenta tinged prickly pears cactus on northern hill in Davis Mountains State Park. Fort Davis, Texas, December 29, 2007
 Reconstructed Zubara Fort on northwest coast. Qatar, February 11, 2011
 A walk near Frick Lab at rain. Princeton, New Jersey, April 12, 2007
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