Great Siege Tunnels
Military Heritage Centre
Princess Caroline's Battery, a half-hour walk north (downhill) from the top cable-car station, houses a Military Heritage Centre. From...
The Star Bar is the oldest pub on the Rock.
Café Solo is quite refined and has a variety of interesting pastas and salads, including vegetarian fare.
Great Siege Tunnels information
Lonely Planet review
The Great Siege Tunnels were gun emplacements hewn out by hand by the British during the 1779-83 siege. They constitute a tiny portion of the more than 70km (43mi) of tunnels in the Rock, most of which are off limits to the public. Nearby is the Tower of Homage, the last vestige of Gibraltar's Muslim castle, built in 1333.
New Ministry of Defence Tunnel Tours can now take you through the WWII caves where the Allied invasion of North Africa was planned.