Tajikistan is known as for its natural beauty especially its towering Pamir mountains. Tourists enjoy climbing and trekking through the Fannsky Gory (Fan Mountains). The Gumbezkul Valley with its steep slopes is great for hiking and offers spectacular views. Tourists can also visit the nearby Madiyan Valley that has hot springs. Water lovers must visit the Yashil-Kul or Green Lake for its beaches and warm springs. The city of Khojand has the Panchshanbe Bazar that is great for shopping and the mausoleum of Sheikh Massal ad-Din. The ancient city ruins in Penjiikent are popular with history enthusiasts.