After more than a year of work, the National Park Service on Wednesday pulled the tarps off upgrades at Alcatraz, showing off $3 million in improvements to the sally port, guardhouse, library, schoolhouse and other historic areas.

Spend a night on the Rock with volunteer photographers capturing its history and mystery.

The historic Round House building at the Golden Gate Bridge will soon re-open as a cafe, closer to its original use when it opened 77 years ago.

Alcatraz beat out the Golden Gate Bridge, the Lincoln Memorial and the Statue of Liberty to be selected the No. 1 landmark in the U.S. in TripAdvisor's recent Travelers' Choice awards.

Get an inside look at the penitentiaries and reformatories that once held inmates, have become increasingly popular tourist attractions.